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      <a id="loop_le"></a>
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      <a id="Indexloop_le" class="indexterm"></a>
      <div class="refnamediv">
        <h2>
          <span class="refentrytitle">loop_le</span>
        </h2>
        <p>loop_le — 
      Looping constructions.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp119932560"></a>
        <h2>Description</h2>
        <p>
      Construction of looping operations.
   </p>
      </div>
      <div class="refsect1">
        <a id="idp120005040"></a>
        <h2>Syntax</h2>
        <pre class="synopsis"><span class="command"><strong>loop_le</strong></span>  indx, incr, imax, label</pre>
        <pre class="synopsis"><span class="command"><strong>loop_le</strong></span>  kndx, kncr, kmax, label</pre>
      </div>
      <div class="refsect1">
        <a id="idp120008336"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>indx</em></span> -- i-rate variable to count loop.
    </p>
        <p>
      <span class="emphasis"><em>incr</em></span> -- value to increment the loop.
    </p>
        <p>
      <span class="emphasis"><em>imax</em></span> -- maximum value of loop index.
    </p>
      </div>
      <div class="refsect1">
        <a id="idp120011680"></a>
        <h2>Performance</h2>
        <p>
      <span class="emphasis"><em>kndx</em></span> -- k-rate variable to count loop.
    </p>
        <p>
      <span class="emphasis"><em>kncr</em></span> -- value to increment the loop.
    </p>
        <p>
      <span class="emphasis"><em>kmax</em></span> -- maximum value of loop index.
    </p>
        <p>
      The actions of <span class="command"><strong>loop_le</strong></span> are equivalent to the
      code
       </p>
        <pre class="programlisting">
         indx  <span class="op">=</span>  indx <span class="op">+</span> incr
         <span class="opc">if</span> (indx <span class="op">&lt;=</span> imax) <span class="opc">igoto</span> label</pre>
        <p>
  or
       </p>
        <pre class="programlisting">
         kndx  <span class="op">=</span>  kndx <span class="op">+</span> kncr
         <span class="opc">if</span> (kndx <span class="op">&lt;=</span> kmax) <span class="opc">kgoto</span> label</pre>
        <p>
    </p>
      </div>
      <div class="refsect1">
        <a id="idp120024736"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the loop_le opcode. It uses the file <a class="ulink" href="examples/loop_le.csd" target="_top"><em class="citetitle">loop_le.csd</em></a>.
      </p>
        <div class="example">
          <a id="idp120026512"></a>
          <p class="title">
            <strong>Example 434. Example of the loop_le opcode.</strong>
          </p>
          <div class="example-contents">
            <p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac     <span class="comment">;;;realtime audio out</span>
<span class="comment">;-iadc    ;;;uncomment -iadc if RT audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o loop_le.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span>  <span class="op">=</span> 1

<span class="ohdr">seed</span> 0
gisine <span class="ohdr">ftgen</span> 0, 0, 2^10, 10, 1

<span class="oblock">instr</span> 1 <span class="comment">;master instrument</span>

ininstr <span class="op">=</span> 5 <span class="comment">;number of called instances</span>
indx <span class="op">=</span> 0
<span class="olabel">loop</span><span class="op">:</span>
      <span class="opc">prints</span> "play <span class="opc">instance</span> <span class="op">%</span>d\\n", indx
ipan  <span class="opc">random</span> 0, 1
ifreq <span class="opc">random</span> 100, 1000
iamp  <span class="op">=</span> 1<span class="op">/</span>ininstr
<span class="opc">event_i</span> "i", 10, 0, p3, iamp, ifreq, ipan
<span class="octrl">loop_le</span> indx, 1, ininstr, <span class="olabel">loop</span>

<span class="oblock">endin</span>

<span class="oblock">instr</span> 10

ipeak <span class="opc">random</span> 0, 1 <span class="comment">;where is the envelope peak</span>
asig  <span class="opc">poscil3</span> p4, p5, gisine
aenv  <span class="opc">transeg</span> 0, p3<span class="op">*</span>ipeak, 6, 1, p3<span class="op">-</span>p3<span class="op">*</span>ipeak, <span class="op">-</span>6, 0
aL,aR <span class="opc">pan2</span> asig<span class="op">*</span>aenv, p6
      <span class="opc">outs</span> aL, aR

<span class="oblock">endin</span>

<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>
<span class="stamnt">i</span>1 0 10
<span class="stamnt">e</span>
<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
          </div>
        </div>
        <p><br class="example-break" />
            Its output should include a line like this:
      </p>
        <pre class="screen">
play instance 0
play instance 1
play instance 2
play instance 3
play instance 4
play instance 5
      </pre>
        <p>
    </p>
      </div>
      <div class="refsect1">
        <a id="idp120031616"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="loop_ge.html" title="loop_ge"><em class="citetitle">loop_ge</em></a>,
      <a class="link" href="loop_gt.html" title="loop_gt"><em class="citetitle">loop_gt</em></a> and
      <a class="link" href="loop_lt.html" title="loop_lt"><em class="citetitle">loop_lt</em></a>.
    </p>
        <p> More information on this opcode: <a class="ulink" href="http://www.csoundjournal.com/2006summer/controlFlow_part2.html" target="_top"><em class="citetitle">http://www.csoundjournal.com/2006summer/controlFlow_part2.html</em></a>  , written by Steven Yi. 
 And in the Floss Manuals: <a class="ulink" href="http://en.flossmanuals.net/csound/ch018_c-control-structures" target="_top"><em class="citetitle"> http://en.flossmanuals.net/csound/ch018_c-control-structures</em></a></p>
      </div>
      <div class="refsect1">
        <a id="idp120037840"></a>
        <h2>Credits</h2>
        <p>Istvan Varga.</p>
        <p>New in Csound version 5.01</p>
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